Truck.



PATBNTBD APR. 10, 1006.

P. TWOMBY. TRUCK.

. ArPLxoATIoN rILBD 030.10, 1005.

' @wi/Mmes@ atroz/ums No.sizaeo.

UNITED srarns PATENT orario-E.

PATRICK rwoimcr,m Yoan, N. Y." k

Tauck. i

Patented April 1o, 1 90e.

Application filed December 18.1905. Serial Na 292,371.

ATo (all whom, it may concern:

Be it, known that I, PATRICK TWOMEY, a citizen 'of the United States, residing at N ew York, in the county and State of New York, haveinvented new and useful Improvements in Trucks, of which the following is al specilication.

' My invention is an improved truck having a flexible endless traveling platform and further provided with a derrick by means of `which commodities may be loaded on the truck; and it consists in the construction, combination, and arrangement of devices hereinafter described and claimed.

The present invention is an improvement 4 on the truck described 'and claimed in mv allowed a plication for Letters Patent of the United tetes, filed February 11, 1905,l and numbered serially 245,244. In the .accompanying drawino's, Figure 1 is aside elevationof my improved truck. Fig. 2 is an end. elevation of the same.

The frame l of my im roved truck is here shown as provided wit -rear su porting` wheels 2 on-a fixed axle 3, j ournaled) in bearin 4, and front supporting-wheels 5 on an aide 6. At the ends ofthe truck are brackets 7, provided, respectively, with bearings 8 9 -for shafts 10'and 1-1. .The said shafts are provided with sprocket-Wheels 12, engaged y endless chains 13, which are connected together'by cross-bars 14 said chains and bars comprising a flexible endless .traveling platform the upper run of which is movable over guide and supporting ways 15, with which the truck-frame is provided. This endless i traveling platform 1s more particularly described and is claimed in my copending aplication for Letters Patent of the United L tates. The shaft 11 is provided with a sprocket-wheel 16, connected by an endless sprocket-chain 17 to a similar wheel 18 on a s aft 19, which is journaled in bearings 20, with which the frame is provided 'and which may be turned by means of a suitable crank, so as'to cause the endless traveling platform to be operated.

The sides of the frame are provided with horizontallydisposed bars 21. A pair of drum-shafts 22 are journaled in bearings 23 on the said bars 21 and are provided with intermeshing spur-gears 24 at one end and with drums 25 at the op osite end. A countershaft 26 is 'ournale in bearin s 27 'on said bars 21 and has a pinion 28, w ich engages one of said gears 24 and is also provided w1th a spur-gear 29, which is engaged by a pinion 3() on a power-shaft 31, which shaft is journaled in bearings 32 on said bars 21and is provided with a crank 33, whereby it may be manually operated.

Onthe same side of Vthe frame with the drums 25 is a. vertical standard 34, which is here shown as bolted to said frame and to one of the bars 21. On the outer side of the said standard, near its lower end, is secured a block or bracket 35, which projects outwardly therefrom and is provided with a vertical opening for the reception of a. pivotlpin 36. The said pivot-pin has an eye 37 at its upper end, through which passes a pivot-bolt 33, said bolt also passing through a pair of plates 39, which are bolted to `the lower end of the lower member 4() of the derrick 41, the said derrick comprisingy the tubular lower member 4() and the tubular upper memberv 42, which is telescopically disposed in said member 40, is adjustable therein, 'and may 'be secured thereto at any desired adjustment b v means ol' a suitable clamping-screw or other device 43.

The derrick is normally held. in an inclined position by a bracket-arm 44, which is ses cured to and projects from one side of the truck-frame and is provided with a bolted outer member 45, which may be removed from said bracket-arm to release the derrick, so that the latter may be lowered and extended to a horizontal position to enable ac,- cess to be readily attained to the derrick and facilitate the adjustment thereof. At the upper end of the upper member 42 of the derric is a cross-arm 46. Pulleys 47 are susp)ended from the ends of the said cross-arm.

irection-pulleys 48 are mounted on opposite sides of the lower member of the derrick at a suitable distance above the truck-frame. The hoisting-tackles 49 pass over the pulleys 47 and engage the direction-pulleys 48, and theirlower ends are attached to and reverselv wound on the respective drums 25. It will be understood. that said drums are simultaneously reversely rotated when the hand-crank 33 is turned so that the hoisting-tackles are simultaneously operated in the direction required to raise and lower a weight.

The truck-frame is provided on the side op osite the derrick with an upstanding arm .or racket 51. n A guy 52 for the derrick is attached to said bracket or arm. It will be observed that the derrick inclines outwardly from one side of the truck-frame. To pre- IOO IIO

vent it when hoisting a load from overturning the truck, I provide a supporting-leg', the upper end of which is here shown as pivoted to a collar 54, which is adjstable on the lower member of the derrick and is secured thereto at any desired adjustment by means of a screw or bolt 55, the lower end of the supporting-leg when the derrick `is in use resting upon a oor or other surface on which the truck is laced` The said leg braces the derrick 'an the truck 'and prevents/them from being overturned. i

From the foregoing description, taken in connection with t e accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction may be resortedl to without departing from the principle or sacrificing any of the advantages of this invention as defined by the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. A truck having a flexible endless traveling platform, a vertically-disposed pivot-pin mounted on one sideY of the truck, a bracketarm projecting from the same side of the truck, and a derrick comprising a lower member and an'upper member, the latter slidably connected to the lower member, said lower member being pivotally connected to the upper end of the pivot-pin and detachably secured to the bracket-arm and held thereby in an inclined position, said pivot-pin and the 'connection between the same and the lower member of the derrick adapting the derricl to be disposed in substantially a, horizontal position and lowered from the truck.

2. A truck having a flexible endless traveling platform, a vertically-disposed pivot-pin mounted on one side .of the truck, abracketarm projecting from the same side of the truck, a derrick having its lower portion pivotally connected to the said pivot-pin for movement in a vertical plane and detachably connected to the bracket-arm, and a supporting-le having its upper end pivotally connecte to the lower portion of the derrick, substantially as described.

In testimony whereoil I have signed my name to this specification in the presence of two subscribing witnesses.

PATRICK TWOMEY.

Witnesses;

RICHARD H. ARNOLD, LAMBERT G. MArEs. 

